Coke-extracting machine.



No. 863,891. I PATENTED AUG 20,1907.

- E. H. ABRAHAM.

COKE BXTRAUTING MACHINE. APPLICATION FILED NOV. 16. 1906..

2 SHEETS-SHEET l.

WITNESSES: i INVENTOR 51 MMM By/zz's Attorney,

THE NORRIS Parties 50., WASHINGTON, u. c.

PATENTBD AUG; 20, 1907 E. H. ABRAHAM. 00KB EXTRAGTING MACHINE.

APPLICATION FILED NOV. 16. 190B.

2 SHEETS-SHEET 2.

INVENTOR By his Atzomey, WWW

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UNITED STATES PATENT OFFIQE.

ENOOH H. ABRAHAM, OF UNIONTOWN, PENNSYLVANIA, ASSIGNOR TO GOVINGTON MAOIIINE COMPANY, A CORPORATION OF VIRGINIA.

GOKE- EXTRACTING MACHINE.

Specification of Letters Patent.

Patented Aug. 20, 1907.

Application filed November 16.1906. Serial No. 343.652.

To all whom 'it may concern:

Be it known that ENOCH H. ABRAHAM, a citizen of the United States of America, and a resident of Uniontown, Fayette county, Pennsylvania, has invented new and useful Improvements in Coke-Extracting- The invention relates particularly to that class of machinery in which the tool which removes the coke from the oven is carried upon a carriage moving on a track in front of a series of ovens, which carriage is caused by appropriate mechanism to travel in front of the row of ovens and to insert and withdraw the tool into and from each oven and so move it when in the oven, horizontally and vertically, that all parts of the oven in succession will be subjected to its effect. In this particular class of coke extractors, the plate or shovel is attached to a bar or ram, which bar or ram slides in an appropriate carriage, between rollers, and is necessarily of such length that the-shovel or plate attached to it will reach the most remote parts of the coke ovens.

The present invention is an improvement in the form of shovel used in connection with this type of coke extracting machine, and particularly to the form' of flat shovel with an opening in its interior which is capable of being used in this class of machine, and through which opening within the shovel the coke falls when the shovel is withdrawn from the furnace.

The invention will be best understood by reference to the accompanying two sheets of drawings forming part of this specification, in which Figure 1 is a vertical and end view, partly in cross section, of a coke extracting machine of the type shown in United States Letters Patent issued to William H. McConnell, 768,067, on the 22nd (lay of August, 1904, which is the general class of coke extractor to which the flat shovel with an opening in the center is applied. Fig. 2 is a plan view of the carriage of the McConnell machine, showing the retracting bar and a shovel of the type above referred to attached thereto, which said shovel is equipped with the present invention. Fig. 3 is a plan view, partially broken away, of the shovel, showing the present invention. Fig. 4 is a plan view of the shovel shown. in Fig. 3. Fig. 5 is an end view showing the present invention, looking in the direction of the arrows taken on the line 5-5 of Fig. 3.

Similar letters refer to similar parts throughout the several views.

In the drawings, E represents the bed plate of the machine, which is made rectangular in form and of the same general type of bed plate as shown in the aforesaid patent. This is mounted on the pedestals T, which in turn are mounted on the wheels W on the axle V.

S represents the rails upon which the extractor moves, placed in front of a series of coke ovens upon the tics K.

B is the bar orram of the coke rcmovingtool, attached to which at one end is the scoop or shovel A, forming the subject of the present invention. The ram B is mounted upon a horizontal rotating ram carriage D as shown in Fig. l. in the patent above referred to, and is arranged to slide therein between a series of vertical rollers O, (l, which rotate in appropriate boxes inserted on the top of the bottom plate II of the carriage D as shown in Fig. 1. The ram B is supported by three horizontal rollers I, I, I. one of which is supported in the extension piece at the forward end of the carriage. The ram B is held down on these rollers by th e rol lcr R on the forward end, and 'bya similar roller at the rear end.

A, variety of devices may be used for controlling the movement of and to move the ram, but these play no part in the present invention. The ram is provided with the toothed rack c, which engages with the spur wheel Q connected with appropriate mechanism for driving the same forward and backward, and the whole carriage turns upon the rollers M, on the top of the bed plate E.

The shovel is composed preferably of a curved auxiliary head a, and a main head a, so as to form a ring shaped shovel. In the drawing it is shown substantially semi-circular, but as stated above it may be of any convenient shape. The lower surface of the shovel is made fiat, as shown in Fig. l, and the edges are beveled as shown, so as to make a sharp edge which can pass under the coke. G is a receptacle placed between the carriage and the furnace into which the coke as it falls from the shovel is dischargcd. This may be a traveling conveyor, which is the form shown. or a table or other conv cnient device.

The present invention consists in providing the shovel with a series of grooves or indentations on the outer edge of the shovel, and a series of pivoted and weighted lugs along the heel of the shovel which serves the purpose of a rake when the shovel is retracted, and assists in the removal of the coke.

As shown in Figs. 2, 3 and 4, a is a series of grooves or curves which are formed on the beveled face a of the shovel, and the object of which is, as the shovel enters the coke oven, to facilitate the raising of the particles of coke and lifting them from the furnace door and causing them to disengage from each other, as well as to prevent the movement of the shove] from being deflected from a straight line. They may be cast or otherwise formed upon the edge of the shovel, and may be of any desired depth or angle of inclination. 1n practice, however, the form of grooves shown in Figs. 3 and 4 will be found preferable. L is a series of lugs which are of the shape shown in Figs. 2 and 3. They are pivoted at the bottom upon the bolt b which enters the rear of the shovel at the points d as shown in Figs. 2, 3 and i. The head a is cast or form ed with a deep groove inthe underside of the heel, and into this are openings from the top to admit the lugs which work on the bolt 1) running through the head from the points (Z (Z on either side. This bolt, if necessary, can pass through the head of the ram or bar B and will thus assist in holding it upon the shovel. The lugs are of varying length and are tapering, as shown, from the center towards the side of the shovel, so that when the same stand upright they are higher in the center than at the sides. When they are in the position shown in Fig. 2, they are flat, resting in the pockets h in the heel a Their position will appear clearly from Figs. 2, 3 and 5. \Yhen the shovel is introduced under the coke, the coke passes over the bars, which assume the position shown in Figs. 1 and l but when the retraction of the bar 1) begins, the coke which is passed over the heel o and lies in thc'furnacc behind the shovel will engage with the inclined ends of the lugs and force them to assume the vertical position shown in dotted lines in Fig. f. Fig. f shows them at rest when the shovel is being inserted into the coke oven. The height of the lugs will vary from time to time as may be most convenient, and their dimensions will depend in each case upon the size of the shovel. The sockets or seats h 71. in which they play are made sufficiently large to enable the lugs to move freely and fall to the normal position shown in Fig. 2 when the shovel is withdrawn from the oven, and the seats are beveled at the back as shown, so as to permit small particles of thecoke to fall through, and prevent the lugs from being clogged thereby. portion a of the shovel is slightly raised at the front in the center, and is formed somewhat like the share of a I plow, as shown at the point 7) in Fig. 4-, so as to present a sharp vertical edge to the coke, with a view to raising and loosening the coke, facilitating the passage of the heel thereunder, and aiding in the withdrawal of the same by the heel.

The method of operation is as follows: The carriage is rolled in front of the coke oven, the operating mechanism is brought into an engagement, and the ram 13 forces the shovel into the coke oven under the coke and lifts it and separates it. The turning mechanism will then. throw it to either side, and the effect oi the grooves will be to disengage the pieces of coke from 7 each other and from the floor of the furnace as the shovel passes in. Part of the coke passes over the head as the shovel moves into the furnace, and when the shovel is rctracte ,l, it brings out the coke which has The front of the curved fallen behind it, as well as the coke which rests on top of it. When the lugs come in contact with the coke behind the shovel, they will be forced forward and serve as a rake, assuming the position shown in dotted lines in Fig. i, and carry the coke backward with it, and when the edge of the furnace is reached allow it to fall upon the conveyer. The portion of the coke in front of the cross head a will fall through the opening in the shovel, and in like manner be deposited in the conveyor. This operation is repeated from time to time as is necessary until substantially all the coke is removed.

I claim as my invention:

1. A shovel for drawing coke from coke ovens, consisting olia ram or handle having a flat head of any convenient shape provided with an opening in its center and a beveled edge and having a series of grooves along the e( for the purposes specified.

A shovel ifor drawing coke from coke ovens, consist- -ing of. a rain or handle having a ring-shaped head provided with a beveled edge and provided with a series of grooves along the edges for the purposes specified.

3. A shovel for drawing coke from coke ovens, consisting of a ram or handle having a ring-shaped auxiliary head provided with a beveled edge and provided with a series of grooves along the edges for the purposes specified.

-l-. la a machine for drawing coke, the combination with a movable carrii 'e of a shovel consisting of a ram or handle having a tint head of any convenient shape, provided with an opening in its center and a beveled edge, and having a series of grooves along the edges for the purposes specified, and means for automatically operating the shovel substantially as described.

5. A shovel for drawing coke from coke ovens, consisting of a rain or handle having a flat head of any convenient shape with an opening in its center and a beveled edge. having in combination therewith a series of lugs pivoted into the rear of the head, which are raised by the coke which has passed over the same when the shovel is retracted, and serve as a rake for removing the coke.

(i. A shovel for drawing coke from coke ovens, consisting of a rain or handle having a flat head of any convenient shape with an opening in its center and a beveled edge, having in combination therewith a series of lugs pivoted into the rear of the head, which are raised by the coke which has passed over the same when the shovel is re traded, and serve as a rake for removing the coke, and

' a series of? grooves along the edge for the purposesspecilied.

7. A shovel for drawing coke from coke ovens, consist ing of? a rain or handle having a flat head of any convenient shape with an opening in its center and a beveled edge, having in combination therewith a series of weighted lugs pivoted into the rear of the head, which are raised by the coke which has passed over the same when the shovel is retracted, and serve as a rake for removing the coke, and a series of grooves along the edge for the purposes specified.

S. A shovel for drawing coke from coke ovens consisting of a rain or handle having a fiat head of any conven ient shape, provided with an opening in its center and a beveled edge and a shoulder beveled in two directions at the point of the head for the purposes of disintegrating and raising the coke from the bed of the oven.

In testimony, that I claim the foregoing as my inven tion. I have signed my name in presence of two witnesses, this 15th day of November, 1906.

ENOCH I'I. ABRAHAM.

\Yil'ucsses WiLnAnD PARKER Bu'rnpn, .Touiv bnnvcu. 

